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Hunter-Best [27]
3 years ago
15

The velocity component with which a projectile covers certain horizontal distance is maximum at the moment of? a) Hitting the gr

ound b) Highest point c) Projection d) None of these
Physics
1 answer:
Crazy boy [7]3 years ago
3 0
A) hitting the ground
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What is the difference between fertilization and pollination
lana [24]
<span>Pollination is when the male gamete or pollen reaches the female flower through different modes...wind,air,animals,... 
Fertilization </span><span>is when the male gamete "join" with the female gamete to become an embryo.
I hope I helped.:) </span>
4 0
3 years ago
A proton moving in the positive x direction with a speed of 9.9 105 m/s experiences zero magnetic force. When it moves in the po
Alex

Answer:

The magnitude of the magnetic field is 1.01T and its direction is in the negative x direction

Explanation:

In order to calculate the magnitude and direction of the magnetic field, you take into account the following equation for the magnetic force on the proton:

\vec{F_B}=q\vec{v}\ X\ \vec{B}       (1)

v: speed of the proton = 9.9*10^5 m/s

q: charge of the proton = 1.6*10^-19C

B: magnetic field = ?

FB: magnetic force on the proton = 1.6*10^-13N

When the proton travels in the positive y direction (^j), you have that the proton experiences a force in the positive z direction (+^k). To obtain this direction of the magnetic force on the proton, it is necessary that the magnetic field points in the negative x direction, in fact, you have:

^j X (-^i) = -(-^k)=^k

To obtain the magnitude of the magnetic field you use:

F_B=qvBsin90\°=qvB\\\\B=\frac{F_B}{qv}=\frac{1.6*10^{-13}N}{(1.6*10^{-19}C)(9.9*10^5m/s)}\\\\B=1.01T

The magnitude of the magnetic field is 1.01T and its direction is in the negative x direction

8 0
3 years ago
What two factors could the students change to investigate how to increase and decrease the magnetic force between the paperclip
scoundrel [369]
..............................................A
4 0
2 years ago
Which force links electricity and magnetism together?​
xenn [34]

Answer:

the electromagnetic force

4 0
3 years ago
Which has more momentum? A paper airplane with a mass of 10g flying at a velocity of 4m/s or a real airplane that is parked at a
vladimir1956 [14]
The momentum is calculated by multiplying the mass and the velocity of the object. 
                 momentum 1 :    = (10 g)(4 m/s) = 40 g m/s
                 momentum 2:     = (1000 kg)(0 m/s) = 0 kg m/s
Thus, the paper airplane has a greater momentum than the real airplane. 
5 0
3 years ago
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